Commit efde12b2 authored by Kishon Vijay Abraham I's avatar Kishon Vijay Abraham I Committed by Ulf Hansson
Browse files

mmc: sdhci-omap: Add sdhci_omap specific ops for enable_sdio_irq 



Add sdhci_omap_enable_sdio_irq to set CTPL and CLKEXTFREE bits in
MMCHS_CON register required to detect asynchronous card interrupt
on DAT[1].

Signed-off-by: default avatarKishon Vijay Abraham I <kishon@ti.com>
Acked-by: default avatarAdrian Hunter <adrian.hunter@intel.com>
Acked-by: default avatarTony Lindgren <tony@atomide.com>
Signed-off-by: default avatarUlf Hansson <ulf.hansson@linaro.org>
parent 6d75df75

drivers/mmc/host/sdhci-omap.c

+19 −0
Original line number Diff line number Diff line
@@ -36,6 +36,7 @@ 
#define CON_DDR			BIT(19)

#define CON_CLKEXTFREE		BIT(16)

#define CON_PADEN		BIT(15)

#define CON_CTPL		BIT(11)

#define CON_INIT		BIT(1)

#define CON_OD			BIT(0)
@@ -226,6 +227,23 @@ static void sdhci_omap_conf_bus_power(struct sdhci_omap_host *omap_host, 
	}

}



static void sdhci_omap_enable_sdio_irq(struct mmc_host *mmc, int enable)

{

	struct sdhci_host *host = mmc_priv(mmc);

	struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);

	struct sdhci_omap_host *omap_host = sdhci_pltfm_priv(pltfm_host);

	u32 reg;



	reg = sdhci_omap_readl(omap_host, SDHCI_OMAP_CON);

	if (enable)

		reg |= (CON_CTPL | CON_CLKEXTFREE);

	else

		reg &= ~(CON_CTPL | CON_CLKEXTFREE);

	sdhci_omap_writel(omap_host, SDHCI_OMAP_CON, reg);



	sdhci_enable_sdio_irq(mmc, enable);

}



static inline void sdhci_omap_set_dll(struct sdhci_omap_host *omap_host,

				      int count)

{
@@ -962,6 +980,7 @@ static int sdhci_omap_probe(struct platform_device *pdev) 
	host->mmc_host_ops.set_ios = sdhci_omap_set_ios;

	host->mmc_host_ops.card_busy = sdhci_omap_card_busy;

	host->mmc_host_ops.execute_tuning = sdhci_omap_execute_tuning;

	host->mmc_host_ops.enable_sdio_irq = sdhci_omap_enable_sdio_irq;



	ret = sdhci_setup_host(host);

	if (ret)

CRA Git | Maintained and supported by SUSTech CRA and CCSE